Logging Framework Selection — Choosing the Right Logging Framework

// Comparison criteria for logging frameworks
const frameworkComparison = {
  pino: {
    performance: { opsPerSec: 50000, overhead: 'low' },
    features: ['JSON native', 'levels', 'child loggers', 'redact', 'transport'],
    ecosystem: ['Loki transport', 'Elastic transport', 'Datadog transport'],
    bestFor: ['High-performance Node.js APIs', 'Microservices', 'Container environments']
  },
  winston: {
    performance: { opsPerSec: 15000, overhead: 'medium' },
    features: ['Multiple transports', 'Custom formats', 'Profiling', 'Exception handling'],
    ecosystem: ['Daily rotate', 'Syslog', 'Slack', 'CloudWatch'],
    bestFor: ['Complex logging pipelines', 'Multi-destination', 'Legacy applications']
  },
  bunyan: {
    performance: { opsPerSec: 25000, overhead: 'low' },
    features: ['JSON native', 'Serializers', 'Streams', 'CLI tool'],
    ecosystem: ['RingBuffer', 'DTrace probes'],
    bestFor: ['CLI tools', 'Simple JSON logging', 'Debugging focused']
  }
};

// Performance benchmark
async function benchmarkLoggers() {
  const loggers = {
    pino: pino(),
    winston: winston.createLogger({ transports: [new winston.transports.Console()] }),
    bunyan: bunyan.createLogger({ name: 'benchmark' })
  };

  for (const [name, logger] of Object.entries(loggers)) {
    const start = process.hrtime.bigint();
    const iterations = 100000;

    for (let i = 0; i < iterations; i++) {
      logger.info({ message: 'Test log entry', index: i, data: { key: 'value' } });
    }

    const end = process.hrtime.bigint();
    const duration = Number(end - start) / 1e6;

    console.log(`${name}: ${iterations} logs in ${duration.toFixed(0)}ms (${(iterations / duration * 1000).toFixed(0)} ops/sec)`);
  }
}

// Selection decision tree
function selectFramework(requirements) {
  if (requirements.highPerformance || requirements.containerized) return 'pino';
  if (requirements.multipleTransports || requirements.complexFormatting) return 'winston';
  if (requirements.simple || requirements.cli) return 'bunyan';
  return 'pino'; // Default
}